Standard cylinders in resistance welding are outlined below, but custom configurations are available. Let a T. J. Snow Applications Engineer help you in selecting the right force delivery system for your application.
– Air moves the piston in both directions using a dual port, but without a stroke adjuster. This cylinder option is the most inefficient in most applications as the rear chamber has to be filled completely between each operation.
– An adjustable stroke cylinder provides an additional stroke that allows the weld tips to have a retracted position (All the way open) another middle position (a smaller gap but tips not touching) and then a weld position (tips touching) typically with 3 or 4 ports. The operating stoke can be adjusted from zero to the maximum stroke of the cylinder. Adjustable stroke cylinders with stroke adjustment are more efficient than standard dual acting because no more air is used than required as it is set. Typically an external stroke adjustment is located on the top of the cylinder.
– The Adjustable Retractable cylinder retains the adjustable feature to set any required stroke position, in addition to open to a fully retracted position. It is necessary to have a 3 way valve, as well as to provide higher pressure on the retract piston over the work piston.
ARO/SAVAIR cylinders are available from T. J. Snow in a range of configurations and sizes.